Alerting: Allow querying of Alerts from notifications (#32614)

* Alerting: Allow querying of Alerts from notifications

* Wire everything up

* Remove unused functions

* Remove duplicate line

pkg/services/ngalert/api/util.go

@@ -11,7 +11,6 @@ import (
 	"strconv"
 	"strings"
 
-	"github.com/go-openapi/strfmt"
 	apimodels "github.com/grafana/alerting-api/pkg/api"
 	"github.com/grafana/grafana/pkg/api/response"
 	"github.com/grafana/grafana/pkg/models"
@@ -30,14 +29,6 @@ func toMacaronPath(path string) string {
 	}))
 }
 
-func timePtr(t strfmt.DateTime) *strfmt.DateTime {
-	return &t
-}
-
-func stringPtr(s string) *string {
-	return &s
-}
-
 func backendType(ctx *models.ReqContext, cache datasources.CacheService) (apimodels.Backend, error) {
 	recipient := ctx.Params("Recipient")
 	if recipient == apimodels.GrafanaBackend.String() {